Six-Cylinder Engine; Service Operations On Car; Engine Insulators - Pontiac Grand Prix Service Manual

6-4
1969 PONTIAC SERVICE MANUAL
SIX-CYLINDER ENGINE
CONTENTS OF THIS SECTION
SUBJECT PAGE SUBJECT PAGE
General Description.
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6-
1
Front Crankcase Cover and Gasket
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Periodic Service
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6-4
Remove and Replace
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6- 19
Service Operations on C a r .
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6-4
Housing Assembly
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Oil Pump, Distributor
Engine Insulators
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Remove and Replace.
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6-4
and Fuel Pump
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6-20
Drive Belts
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Adjust
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6-6
Pressure Regulator Valve
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Oil Pump
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Engine
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Remove and Install.
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6-6
Remove and Replace
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6-20
Intake and Exhaust Manifold o r Gaskets
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Oil Pump
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Remove and Replace
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6-20
Remove and Replace
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6-6
Housing Assembly
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Remove and
Timing Belt Top Front Cover
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Remove and Replace
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6-20
Replace
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6
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8
Oil Filter By-Pass Valve
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Remove and
Timing Belt Adjustment
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6-8
Replace
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6-21
Camshaft Sprocket o r Seal
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Remove and
Shaft and Sprocket Assembly.
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6-22
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Replace
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6 - 9
Oil Pan
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Remove and Replace
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6-22
Rocker Arm Cover Assembly and Gasket
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Rear Main Bearing Oil Seal
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Remove and
Remove and Replace
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6- 10
Replace
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6-24
Camshaft, Rocker Arm Cover and/or Rocker
Main Bearings
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Remove and Replace
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, 6-24
Arm Cover Core Plug
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Remove and
Connecting
Rod
Bearings
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Remove and
Replace
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6-10
Replace
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6-25
Rocker Arm o r Hydraulic Valve Lash
Connecting
Rod
and Piston Assembly.
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6-26
,
Adjuster
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Remove and Replace.
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6-12
Remove Rod and Piston
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6-26
Hydraulic Lash Adjuster
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Recondition
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6-12
Disassembly Rod and Piston.
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6-26
Valve Springs, Shield o r Seal
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Remove and
Clean and Inspect.
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6-27
Replace
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6-
14
Piston Pin Fit
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6-27
Cylinder Head o r Gasket
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Remove and
Cylinder Bores
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Inspect.
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6-27
Replace
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6
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15
Honing o r Boring.
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6-28
Cylinder Head and Valves
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Recondition
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6-16
Piston Fit and Replace.
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6-29
Fitting Valve Stems to Guides.
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6-17
Assemble Rod and Piston
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6-30
Valves and Seats
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Recondition
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6-17
Piston Rings
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Replace
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6-30
Harmonic Balancer
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Remove and Replace.
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6- 18
Piston' Rings
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Install
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6-31
Lower Front Timing Belt Cover
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Remove Install Rod and Piston
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6-31
and Replace
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6
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19
Crankshaft
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Remove and Replace.
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6-32
Crankshaft Timing Belt Sprocket o r
Fitted Block Assembly
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Replace
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6-32
Crankshaft Cover Seal
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Remove and
Specifications
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6-33
Replace
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6- 19
SIX CYLINDER ENGINE
PERIODIC SERVICE
2. Bolt J 22773 (Firebird) or J 22345 (Tempest) Engine
Support Bracket to front of harmonic balancer (Fig. 6
There are no periodic services required on the 10).
mechanical porti6ns of the engine. Pkriodic services
j.
Remove insulator to
bracket bolts (Fig. 6-8).
connected with the engine consist of tune-up, lubrica-
tion, replacing oil filter,
valve, fuel filter, etc*
4.
With suitable
raise engine at lifting tool
Procedures and recommendations for these services
until insulator clears brackets.
will be found in appropriate sections of this book.
CAUTION: Safety bracket must be bolted to Firebird
SERVICE OPERATIONS ON CAR
ENGINE INSULATORS
engine lifling t i 1 whenever in use to prevent engine fiom
moving while in the raisedposition (Fig. 6-10).
5. Raise engine approximately 1" above front insula-
tors.
REMOVE
6. Remove insulators by removing two insulators-to
block bolts. On manual trans 4 Bbl. Overhead Cam
1. Rotate harmonic balancer until timing mark is at
engine, remove two bolts and two spacers:
bottom.